Home / 76,861.49-115,309.29-23,560.86

Finding the Fourth Proportional to 76,861.49, 115,309.29 and 23,560.86

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Solution

The fourth proportional to 76,861.49, 115,309.29 and 23,560.86 is: 35,346.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,861.49 : 115,309.29 = 23,560.86 : x
  2. Step 2: Convert to fraction form
    76,861.49/115,309.29 = 23,560.86/x
  3. Step 3: Cross multiply
    76,861.49x = 115,309.29 × 23,560.86
  4. Step 4: Simplify right side
    76,861.49x = 2,716,786,038.39
  5. Step 5: Solve for x
    x = 2,716,786,038.39/76,861.49
  6. Step 6: Final answer
    x = 35,346.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.